Abstract: In a routing system where a router interconnects circuit components with conduction paths, a crosstalk analyzer is employed to audit the electrical crosstalk incurred in coupled path segments during the interconnection. The resulting crosstalk measures are compared with one or more acceptable crosstalk limits. If the measures exceed any limits, the unsatisfactory condition is fed back to the router, along with information on suggested re-arrangements of the segments. In response to this feedback, the router modifies the routed interconnections to reduce the crosstalk level.

Abstract: A modular electrical connector assembly to which an electrical telecommunication cable is connectable for communicating electrical signals between the connector assembly and cable. The connector assembly includes an electrically nonconductive body and a crosstalk energy emitting electrical interference source on the body and/or on or proximate the connector assembly. Electrically conductive first and second leads on the body define an electrical signal circuit for carrying electrical signals communicatable with the cable. The first lead is located more closely proximate to the interference source than is the second lead such that a greater amount of crosstalk energy from the interference source is electromagnetically impressed on the first lead than on the second lead to thereby define a difference in crosstalk energy on the first and second leads.

Abstract: An amplitude limiting circuit is utilized to select the most favorable linear region of the light vs. current characteristic curve (for directly modulated lasers) or the lasers modulator transfer function (for externally modulated lasers) by preventing excursions of the broadband, multiplexed input signal beyond selected upper and lower current or voltage limits. The clipped broadband signal is represented as a stationary Gaussian process to provide a reliable estimate of the carrier-to-nonlinear distortion per channel that would be experienced with a given laser or optical modulator which may be either directly and externally modulated. The clipping levels can be set to avoid the unpredictable levels of nonlinear distortion of the modulator and thereby to achieve an acceptably low level of non-linear distortion of the modulator.

Abstract: An integrated circuit output section has a controller that controls a plurality of drivers to transmit data signals over output lines in a group staggered manner to substantially reduce the generation of inductive noise or ground and power bounce. The controller staggers the transmission of the data signals in each group relative to the other groups to achieve a reduction in inductive noise of greater than 25% using relatively short total staggering times of less than five times the transition switching time of a driver for the groups of data signals. Also, an enhanced reduction in inductive noise is achieved with a total staggering time equal to or less than a driver transition switching time, wherein at least one group has a different number of data signals than the other groups.